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Shader/EliminateUnusedPassVisitor: Handle alias declarations

This commit is contained in:
SirLynix 2022-04-04 19:23:20 +02:00
parent 68d2dfcae6
commit 7f15c66f16
2 changed files with 23 additions and 6 deletions
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6
include/Nazara/Shader/Ast/EliminateUnusedPassVisitor.hpp
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@ -32,13 +32,15 @@ namespace Nz::ShaderAst
private: private:
using AstCloner::Clone; using AstCloner::Clone;
StatementPtr Clone(DeclareAliasStatement& node) override;
StatementPtr Clone(DeclareExternalStatement& node) override; StatementPtr Clone(DeclareExternalStatement& node) override;
StatementPtr Clone(DeclareFunctionStatement& node) override; StatementPtr Clone(DeclareFunctionStatement& node) override;
StatementPtr Clone(DeclareStructStatement& node) override; StatementPtr Clone(DeclareStructStatement& node) override;
StatementPtr Clone(DeclareVariableStatement& node) override; StatementPtr Clone(DeclareVariableStatement& node) override;
bool IsFunctionUsed(std::size_t varIndex) const; bool IsAliasUsed(std::size_t aliasIndex) const;
bool IsStructUsed(std::size_t varIndex) const; bool IsFunctionUsed(std::size_t funcIndex) const;
bool IsStructUsed(std::size_t structIndex) const;
bool IsVariableUsed(std::size_t varIndex) const; bool IsVariableUsed(std::size_t varIndex) const;
struct Context; struct Context;

23
src/Nazara/Shader/Ast/EliminateUnusedPassVisitor.cpp
View File

@ -36,6 +36,15 @@ namespace Nz::ShaderAst
return Clone(statement); return Clone(statement);
} }
StatementPtr EliminateUnusedPassVisitor::Clone(DeclareAliasStatement& node)
{
assert(node.aliasIndex);
if (!IsAliasUsed(*node.aliasIndex))
return ShaderBuilder::NoOp();
return AstCloner::Clone(node);
}
StatementPtr EliminateUnusedPassVisitor::Clone(DeclareExternalStatement& node) StatementPtr EliminateUnusedPassVisitor::Clone(DeclareExternalStatement& node)
{ {
bool isUsed = false; bool isUsed = false;
@ -99,16 +108,22 @@ namespace Nz::ShaderAst
return AstCloner::Clone(node); return AstCloner::Clone(node);
} }
bool EliminateUnusedPassVisitor::IsFunctionUsed(std::size_t varIndex) const bool EliminateUnusedPassVisitor::IsAliasUsed(std::size_t aliasIndex) const
{ {
assert(m_context); assert(m_context);
return m_context->usageSet.usedFunctions.UnboundedTest(varIndex); return m_context->usageSet.usedAliases.UnboundedTest(aliasIndex);
} }
bool EliminateUnusedPassVisitor::IsStructUsed(std::size_t varIndex) const bool EliminateUnusedPassVisitor::IsFunctionUsed(std::size_t funcIndex) const
{ {
assert(m_context); assert(m_context);
return m_context->usageSet.usedStructs.UnboundedTest(varIndex); return m_context->usageSet.usedFunctions.UnboundedTest(funcIndex);
}
bool EliminateUnusedPassVisitor::IsStructUsed(std::size_t structIndex) const
{
assert(m_context);
return m_context->usageSet.usedStructs.UnboundedTest(structIndex);
} }
bool EliminateUnusedPassVisitor::IsVariableUsed(std::size_t varIndex) const bool EliminateUnusedPassVisitor::IsVariableUsed(std::size_t varIndex) const